Across
- 4. – Particle with no charge found in the nucleus.
- 7. – Energy emitted in the form of waves or particles.
- 9. – A self-sustaining series of nuclear fissions.
- 12. – Center of the atom where protons and neutrons reside.
- 13. – Splitting of a heavy nucleus into smaller nuclei.
- 14. – Atoms of the same element with different numbers of neutrons.
- 15. – High-energy radiation with no mass or charge.
Down
- 1. – This type of radiation can be blocked by paper.
- 2. – A fast-moving electron emitted from a nucleus.
- 3. – Positively charged particle in an atom’s nucleus.
- 5. – Describes substances that emit radiation.
- 6. – Process where an unstable nucleus loses energy.
- 8. – Time it takes for half of a radioactive substance to decay.
- 10. – Heavy element commonly used in nuclear fission.
- 11. – Two light nuclei combine to form a heavier one.